Deep Magic Volume 1
Feather Field
1-level Abjuration
Casting Time: 1 reaction, which you take when you are targeted by a ranged attack from a magic weapon but before the attack roll is made
Range/Area: Self
Components: Verbal, Somatic, Material
Materials: fletching from an arrow
Duration: 1 round
Damage/Effect: Buff
A magical barrier of chaff in the form of feathers appears and protects you. Until the start of your next turn, you have a +5 bonus to AC against ranged attacks by magic weapons.
At higher levels: When you cast feather field using a spell slot of 2nd level or higher, the duration is increased by 1 round for each slot level above 1st.
Available for: Druid, Ranger, Warlock, Wizard